radioactivity is as natural to us as the air we breathe.
"Flight From Tomorrow"
Henry Beam Piper
Seshat had had it already, and on the evidence of the radioactivity counters, not too long ago.
"Space Viking"
Henry Beam Piper
She wanted someone to make the whole world understand-that just as there are hidden spaces between the atoms of steel which made radioactivity possible, so in the human body there is a permeating space, in which the soul of man is built day by day from every thought and act; and when the worn-out physical envelope falls away-there it stands, a record to endure....
"She Buildeth Her House"
Will Comfort